sakura is a terminal emulator based on GTK and VTE. It's a terminal emulator
with few dependencies, so you don't need a full GNOME desktop installed to
have a decent terminal emulator. As far as i know, the only terminal emulators
based on VTE are  gnome-terminal, XFCE Terminal, and a small sample program
included in the vte sources. Sakura differences from the last one is that it
uses a notebook to provide several terminals in one window and adds a
contextual menu with some basic options - no more no less.

This requires vte, which is also available at SlackBuilds.org
